"To Non Extended Characters" Convert the "extended" characters within a string to their "non-extended" counterpart.

The "non-extended" version of characters whose ASCII values ranges from 128 to 255 is the most similar character whose ASCII value is between 32 and 127. For example, the non-extended version of A-umlaut is "A" and the non-extended version of C-circumflex is "C". Examples: